There only needs to be one site in the Hive-O-Sphere for the system to collect Brave Tips. LeoFinance, StemGeeks, peakd.com and hivehustlers.com all seem to accept tips. I suspect that there are more.
The main thing is to have a few contests that distribute the rewards. There is very rarely a post on created page for Brave .
The accounts that issue coins can play games like burning coins equivalent to the BAT tips.
Note, there may be rules against sharing the tips. I am really not up on the brave ethos.